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Finding the Fourth Proportional to 386,454.90, 579,682.35 and 176,502.90

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Solution

The fourth proportional to 386,454.90, 579,682.35 and 176,502.90 is: 264,754.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,454.90 : 579,682.35 = 176,502.90 : x
  2. Step 2: Convert to fraction form
    386,454.90/579,682.35 = 176,502.90/x
  3. Step 3: Cross multiply
    386,454.90x = 579,682.35 × 176,502.90
  4. Step 4: Simplify right side
    386,454.90x = 102,315,615,853.82
  5. Step 5: Solve for x
    x = 102,315,615,853.82/386,454.90
  6. Step 6: Final answer
    x = 264,754.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.